Files
ClubPenguinClient/MareSynchronos/FileCache/PeriodicFileScanner.cs

411 lines
16 KiB
C#

using MareSynchronos.Interop;
using MareSynchronos.MareConfiguration;
using MareSynchronos.Services;
using MareSynchronos.Services.Mediator;
using Microsoft.Extensions.Logging;
using System.Collections.Concurrent;
namespace MareSynchronos.FileCache;
public sealed class PeriodicFileScanner : DisposableMediatorSubscriberBase
{
private readonly MareConfigService _configService;
private readonly FileCacheManager _fileDbManager;
private readonly IpcManager _ipcManager;
private readonly PerformanceCollectorService _performanceCollector;
private readonly DalamudUtilService _dalamudUtil;
private readonly FileCompactor _fileCompactor;
private long _currentFileProgress = 0;
private bool _fileScanWasRunning = false;
private CancellationTokenSource _scanCancellationTokenSource = new();
private TimeSpan _timeUntilNextScan = TimeSpan.Zero;
public PeriodicFileScanner(ILogger<PeriodicFileScanner> logger, IpcManager ipcManager, MareConfigService configService,
FileCacheManager fileDbManager, MareMediator mediator, PerformanceCollectorService performanceCollector, DalamudUtilService dalamudUtil,
FileCompactor fileCompactor) : base(logger, mediator)
{
_ipcManager = ipcManager;
_configService = configService;
_fileDbManager = fileDbManager;
_performanceCollector = performanceCollector;
_dalamudUtil = dalamudUtil;
_fileCompactor = fileCompactor;
Mediator.Subscribe<PenumbraInitializedMessage>(this, (_) => StartScan());
Mediator.Subscribe<HaltScanMessage>(this, (msg) => HaltScan(msg.Source));
Mediator.Subscribe<ResumeScanMessage>(this, (msg) => ResumeScan(msg.Source));
Mediator.Subscribe<SwitchToMainUiMessage>(this, (_) => StartScan());
Mediator.Subscribe<DalamudLoginMessage>(this, (_) => StartScan());
}
public long CurrentFileProgress => _currentFileProgress;
public long TotalFilesStorage { get; private set; }
public long FileCacheSize { get; set; }
public ConcurrentDictionary<string, int> HaltScanLocks { get; set; } = new(StringComparer.Ordinal);
public bool IsScanRunning => CurrentFileProgress > 0 || TotalFiles > 0;
public string TimeUntilNextScan => _timeUntilNextScan.ToString(@"mm\:ss");
public long TotalFiles { get; private set; }
private int TimeBetweenScans => _configService.Current.TimeSpanBetweenScansInSeconds;
public void HaltScan(string source)
{
if (!HaltScanLocks.ContainsKey(source)) HaltScanLocks[source] = 0;
HaltScanLocks[source]++;
if (IsScanRunning && HaltScanLocks.Any(f => f.Value > 0))
{
_scanCancellationTokenSource?.Cancel();
_fileScanWasRunning = true;
}
}
public void InvokeScan(bool forced = false)
{
bool isForced = forced;
bool isForcedFromExternal = forced;
TotalFiles = 0;
_currentFileProgress = 0;
_scanCancellationTokenSource?.Cancel();
_scanCancellationTokenSource = new CancellationTokenSource();
var token = _scanCancellationTokenSource.Token;
_ = Task.Run(async () =>
{
while (!token.IsCancellationRequested)
{
while (HaltScanLocks.Any(f => f.Value > 0) || !_ipcManager.CheckPenumbraApi() || _dalamudUtil.IsOnFrameworkThread)
{
await Task.Delay(TimeSpan.FromSeconds(1)).ConfigureAwait(false);
}
isForced |= RecalculateFileCacheSize();
if (!_configService.Current.FileScanPaused || isForced)
{
isForced = false;
TotalFiles = 0;
_currentFileProgress = 0;
while (_dalamudUtil.IsOnFrameworkThread)
{
Logger.LogWarning("Scanner is on framework, waiting for leaving thread before continuing");
await Task.Delay(250, token).ConfigureAwait(false);
}
Thread scanThread = new(() =>
{
try
{
_performanceCollector.LogPerformance(this, "PeriodicFileScan", () => PeriodicFileScan(isForcedFromExternal, token));
}
catch (Exception ex)
{
Logger.LogError(ex, "Error during Periodic File Scan");
}
})
{
Priority = ThreadPriority.Lowest,
IsBackground = true
};
scanThread.Start();
while (scanThread.IsAlive)
{
await Task.Delay(250).ConfigureAwait(false);
}
if (isForcedFromExternal) isForcedFromExternal = false;
TotalFiles = 0;
_currentFileProgress = 0;
}
_timeUntilNextScan = TimeSpan.FromSeconds(TimeBetweenScans);
while (_timeUntilNextScan.TotalSeconds >= 0 || _dalamudUtil.IsOnFrameworkThread)
{
await Task.Delay(TimeSpan.FromSeconds(1), token).ConfigureAwait(false);
_timeUntilNextScan -= TimeSpan.FromSeconds(1);
}
}
}, token);
}
public bool RecalculateFileCacheSize()
{
FileCacheSize = Directory.EnumerateFiles(_configService.Current.CacheFolder).Sum(f =>
{
try
{
return _fileCompactor.GetFileSizeOnDisk(f);
}
catch
{
return 0;
}
});
var maxCacheInBytes = (long)(_configService.Current.MaxLocalCacheInGiB * 1024d * 1024d * 1024d);
if (FileCacheSize < maxCacheInBytes) return false;
var allFiles = Directory.EnumerateFiles(_configService.Current.CacheFolder)
.Select(f => new FileInfo(f)).OrderBy(f => f.LastAccessTime).ToList();
var maxCacheBuffer = maxCacheInBytes * 0.05d;
while (FileCacheSize > maxCacheInBytes - (long)maxCacheBuffer)
{
var oldestFile = allFiles[0];
FileCacheSize -= _fileCompactor.GetFileSizeOnDisk(oldestFile.FullName);
File.Delete(oldestFile.FullName);
allFiles.Remove(oldestFile);
}
return true;
}
public void ResetLocks()
{
HaltScanLocks.Clear();
}
public void ResumeScan(string source)
{
if (!HaltScanLocks.ContainsKey(source)) HaltScanLocks[source] = 0;
HaltScanLocks[source]--;
if (HaltScanLocks[source] < 0) HaltScanLocks[source] = 0;
if (_fileScanWasRunning && HaltScanLocks.All(f => f.Value == 0))
{
_fileScanWasRunning = false;
InvokeScan(forced: true);
}
}
public void StartScan()
{
if (!_ipcManager.Initialized || !_configService.Current.HasValidSetup()) return;
Logger.LogTrace("Penumbra is active, configuration is valid, scan");
InvokeScan(forced: true);
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
_scanCancellationTokenSource?.Cancel();
}
private void PeriodicFileScan(bool noWaiting, CancellationToken ct)
{
TotalFiles = 1;
var penumbraDir = _ipcManager.PenumbraModDirectory;
bool penDirExists = true;
bool cacheDirExists = true;
if (string.IsNullOrEmpty(penumbraDir) || !Directory.Exists(penumbraDir))
{
penDirExists = false;
Logger.LogWarning("Penumbra directory is not set or does not exist.");
}
if (string.IsNullOrEmpty(_configService.Current.CacheFolder) || !Directory.Exists(_configService.Current.CacheFolder))
{
cacheDirExists = false;
Logger.LogWarning("Mare Cache directory is not set or does not exist.");
}
if (!penDirExists || !cacheDirExists)
{
return;
}
var previousThreadPriority = Thread.CurrentThread.Priority;
Thread.CurrentThread.Priority = ThreadPriority.Lowest;
Logger.LogDebug("Getting files from {penumbra} and {storage}", penumbraDir, _configService.Current.CacheFolder);
string[] ext = { ".mdl", ".tex", ".mtrl", ".tmb", ".pap", ".avfx", ".atex", ".sklb", ".eid", ".phyb", ".scd", ".skp", ".shpk" };
Dictionary<string, string[]> penumbraFiles = new(StringComparer.Ordinal);
foreach (var folder in Directory.EnumerateDirectories(penumbraDir!))
{
try
{
penumbraFiles[folder] = Directory.GetFiles(folder, "*.*", SearchOption.AllDirectories)
.AsParallel()
.Where(f => ext.Any(e => f.EndsWith(e, StringComparison.OrdinalIgnoreCase))
&& !f.Contains(@"\bg\", StringComparison.OrdinalIgnoreCase)
&& !f.Contains(@"\bgcommon\", StringComparison.OrdinalIgnoreCase)
&& !f.Contains(@"\ui\", StringComparison.OrdinalIgnoreCase)).ToArray();
}
catch (Exception ex)
{
Logger.LogWarning(ex, "Could not enumerate path {path}", folder);
}
Thread.Sleep(50);
if (ct.IsCancellationRequested) return;
}
var allCacheFiles = Directory.GetFiles(_configService.Current.CacheFolder, "*.*", SearchOption.TopDirectoryOnly)
.AsParallel()
.Where(f =>
{
var val = f.Split('\\').Last();
return val.Length == 40 || (val.Split('.').FirstOrDefault()?.Length ?? 0) == 40;
});
if (ct.IsCancellationRequested) return;
var allScannedFiles = (penumbraFiles.SelectMany(k => k.Value))
.Concat(allCacheFiles)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToDictionary(t => t.ToLowerInvariant(), t => false, StringComparer.OrdinalIgnoreCase);
TotalFiles = allScannedFiles.Count;
Thread.CurrentThread.Priority = previousThreadPriority;
Thread.Sleep(TimeSpan.FromSeconds(2));
if (ct.IsCancellationRequested) return;
// scan files from database
var threadCount = Math.Clamp((int)(Environment.ProcessorCount / 2.0f), 2, 8);
List<FileCacheEntity> entitiesToRemove = new();
List<FileCacheEntity> entitiesToUpdate = new();
object sync = new();
Thread[] workerThreads = new Thread[threadCount];
ConcurrentQueue<FileCacheEntity> fileCaches = new(_fileDbManager.GetAllFileCaches());
TotalFilesStorage = fileCaches.Count;
for (int i = 0; i < threadCount; i++)
{
Logger.LogTrace("Creating Thread {i}", i);
workerThreads[i] = new((tcounter) =>
{
var threadNr = (int)tcounter!;
Logger.LogTrace("Spawning Worker Thread {i}", threadNr);
while (!ct.IsCancellationRequested && fileCaches.TryDequeue(out var workload))
{
try
{
if (ct.IsCancellationRequested) return;
if (!_ipcManager.CheckPenumbraApi())
{
Logger.LogWarning("Penumbra not available");
return;
}
var validatedCacheResult = _fileDbManager.ValidateFileCacheEntity(workload);
if (validatedCacheResult.State != FileState.RequireDeletion)
{
lock (sync) { allScannedFiles[validatedCacheResult.FileCache.ResolvedFilepath] = true; }
}
if (validatedCacheResult.State == FileState.RequireUpdate)
{
Logger.LogTrace("To update: {path}", validatedCacheResult.FileCache.ResolvedFilepath);
lock (sync) { entitiesToUpdate.Add(validatedCacheResult.FileCache); }
}
else if (validatedCacheResult.State == FileState.RequireDeletion)
{
Logger.LogTrace("To delete: {path}", validatedCacheResult.FileCache.ResolvedFilepath);
lock (sync) { entitiesToRemove.Add(validatedCacheResult.FileCache); }
}
}
catch (Exception ex)
{
Logger.LogWarning(ex, "Failed validating {path}", workload.ResolvedFilepath);
}
Interlocked.Increment(ref _currentFileProgress);
if (!noWaiting) Thread.Sleep(5);
}
Logger.LogTrace("Ending Worker Thread {i}", threadNr);
})
{
Priority = ThreadPriority.Lowest,
IsBackground = true
};
workerThreads[i].Start(i);
}
while (!ct.IsCancellationRequested && workerThreads.Any(u => u.IsAlive))
{
Thread.Sleep(1000);
}
if (ct.IsCancellationRequested) return;
Logger.LogTrace("Threads exited");
if (!_ipcManager.CheckPenumbraApi())
{
Logger.LogWarning("Penumbra not available");
return;
}
if (entitiesToUpdate.Any() || entitiesToRemove.Any())
{
foreach (var entity in entitiesToUpdate)
{
_fileDbManager.UpdateHashedFile(entity);
}
foreach (var entity in entitiesToRemove)
{
_fileDbManager.RemoveHashedFile(entity);
}
_fileDbManager.WriteOutFullCsv();
}
Logger.LogTrace("Scanner validated existing db files");
if (!_ipcManager.CheckPenumbraApi())
{
Logger.LogWarning("Penumbra not available");
return;
}
if (ct.IsCancellationRequested) return;
// scan new files
if (allScannedFiles.Any(c => !c.Value))
{
Parallel.ForEach(allScannedFiles.Where(c => !c.Value).Select(c => c.Key),
new ParallelOptions()
{
MaxDegreeOfParallelism = threadCount,
CancellationToken = ct
}, (cachePath) =>
{
if (ct.IsCancellationRequested) return;
if (!_ipcManager.CheckPenumbraApi())
{
Logger.LogWarning("Penumbra not available");
return;
}
try
{
var entry = _fileDbManager.CreateFileEntry(cachePath);
if (entry == null) _ = _fileDbManager.CreateCacheEntry(cachePath);
}
catch (Exception ex)
{
Logger.LogWarning(ex, "Failed adding {file}", cachePath);
}
Interlocked.Increment(ref _currentFileProgress);
if (!noWaiting) Thread.Sleep(5);
});
Logger.LogTrace("Scanner added {notScanned} new files to db", allScannedFiles.Count(c => !c.Value));
}
Logger.LogDebug("Scan complete");
TotalFiles = 0;
_currentFileProgress = 0;
entitiesToRemove.Clear();
allScannedFiles.Clear();
if (!_configService.Current.InitialScanComplete)
{
_configService.Current.InitialScanComplete = true;
_configService.Save();
}
}
}